### Print CXXIV

*British population surface showing the 1987 general election results (Colour).*

633 mainland constituencies are shown, each of equal volume, using the conventional colours to show the mix of voting — software by author on an Archimedes computer.

The height of each constituency is in proportion to the inverse of their area — so each pillar is of equal volume. This is one alternative to using a population cartogram to show election results. Unfortunately it requires us to be able to estimate volume from a perspective drawing and some parts are obscured — for instance, the red core of London by the blue outer shield.